Odpowiedź :
Korzystamy ze wzorów:
(a+b)²=a²+2*a*b+b²
(a-b)²=a²-2*a*b+b²
(x-1)²=x²-2*x*1+1²=x²-2x+1
(4-x)²=4²-2*4*x+x²=16-8x+x²
(x-7)²=x²-2*x*7+7²=x²-14x+49
(6+x)²=6²+2*6*x+x²=36+12x+x²
(x-10)²= x²-2*x*10+10²=x²-20x+100
Korzystamy ze wzorów:
(a+b)²=a²+2*a*b+b²
(a-b)²=a²-2*a*b+b²
(x-1)²=x²-2*x*1+1²=x²-2x+1
(4-x)²=4²-2*4*x+x²=16-8x+x²
(x-7)²=x²-2*x*7+7²=x²-14x+49
(6+x)²=6²+2*6*x+x²=36+12x+x²
(x-10)²= x²-2*x*10+10²=x²-20x+100